SITE INFORMATION AND CORRESPONDENCE

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f r KYLE CHRISTIE PAGE 2 1711 E. Yosemite, Manteca ARCO Facility #6020 PHS/EHD contact - Michael Infurna The underground storage tanks at this facility are scheduled to be removed. The exact removal date has not yet been determined. The work will probably coincide with the street widening planned for Yosemite Street in Manteca. The tank closure plan, when submitted to PHS/EHD, will include a work plan to over-excavate the new tank pit area and to take confirmation soil samples. This corrective action requires an executive summary and a public participation period of 1 to 30 days prior to implementation. This site is to remain on an annual groundwater monitoring and sampling schedule. Upon review and concurrence with the tank closure report sent to both PHS/EHD and CVRWQCB, documenting successful remediation of the contaminated soil by over-excavation and destruction of the three monitoring wells, site certification/closure will be granted. 7906 N. El Dorado St., Stockton ARCO Facility #2130 PHS/EHD contact - Michael Infurna The addendum to the Final Remedial Plan has been received by PHS/EHD and is currently undergoing review. The remedial system is currently on line as of last week. The additional monitoring wells will be installed pending access to the off site locations. Access agreements were mailed out last month. Several monitoring wells at the site need to be upgraded or maintained due to disrepair. This will be taken care of in the next quarter. 441 W. Charter Way, Stockton ARCO Facility #2168 PHS/EHD contact - Michael Infurna The addendum to the Final Remedial Plan has been received by PHS/EHD and is undergoing review. The current quarterly report has not yet been completed but the upgradient well is still showing the second highest levels of contamination. A historic search by ARCO on the use of the property to the west of the site to determine if there were any former underground storage tanks would be helpful. A file review report completed by EMCON will be submitted to PHS/EHD. The underground storage tanks at this site are scheduled to be removed but the exact date and whether they will be replaced has not yet been determined and is dependent on a new lease agreement between ARCO and the property owner. The new legislation regarding commingling plumes was briefly discussed. S6108 requires a trial period with the City of Blythe but the legislation may be helpful to situations where there are documented co-mingling plumes. 800 E. Kettleman, Lodi ARCO Facility 2076 PHD/EHD contact - Mary Meays The unauthorized release report filed for this site in September 1994 for a drive off spill was discussed. The disposition of the absorbent and the contaminated soil from the cleanup will be included in the next quarterly report or in a separate letter. The third quarter status report was received at the meeting.